Development of peculiar lymphoid apparatuses on the caecum seen in the region of the ileocaecal junction of the Ochotona.
D000818:Animals; D002432:Cecum / Q000196:embryology*; D005260:Female; D007082:Ileum / Q000196:embryology*; D008221:Lymphoid Tissue / Q000196:embryology*; D011247:Pregnancy; D004490:Xenarthra / Q000196:embryology*